How to Check Lubricant

To get an accurate reading, the vehicle should be on a level surface. For Two-Wheel-Drive vehicles, the proper level is from 15mm to 40mm (0.6 in to 1.6 in) below the bottom of the filler plug ...

Starter Switch Check

WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room ar ...

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Safety Belt Care
Keep belts clean and dry. WARNING Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with m ...

SmartKey battery
Important safety notes It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. WARNING   Batteries contain toxic and c ...

Fuse box in the engine compartment
► Open the hood. Illustrated: GL 450 (GL 350 BlueTEC, GL 550 are similar) ► Remove any existing moisture from the fuse box using a dry cloth. ► To open: open clamps 2. ` ...